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Thread: mercury 59ci 55/60hp revs?

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    Team Member fs5's Avatar
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    Default mercury 59ci 55/60hp revs?

    hi I was wondering what sort of revs you guys are getting over there with your 59ci mercs in the outlaw class?
    I've got mine (55 seapro) on an aquarius and it revs between 5200/5600 with a 12x20p ,I havn't tried a 18p with the tach yet.i've heard of guys over there reving them to 6500/6700 with 12x18p props.but some how I don't think mine is ever goin to rev that hard

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    Team Member fs5's Avatar
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    I was out a couple weeks back running my worked 15p trophy sport. with the standard jets fitted and 1up with a 20kg sand bag for ballast it reved to 6350rpm.

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    Team Member Roflhat's Avatar
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    Is that the highest RPM you've had from it? Must get decent speed from a 15p with the higher gear ratio in the merc

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    Team Member fs5's Avatar
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    years ago when the motor was new I got 6400 with a 11x18p merc.it had boysen reeds and the exhaust drilled.
    about 90k's with the trophy mate,its prolly closer to 17p after the work I had done.

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    My friend has a 40hp 59ci and with my 15p ballistic he revved 7000 and his motor was stock! My 30hp 40 ci also revs 7000 with a 18p chopper! Your motor is capable of revving 7000 as well with the right prop

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    Team Member fs5's Avatar
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    we got out sunday mornin and tried a mates 11x20p OH ronhill cleaver ,the old girl reved out to 6760 rpm the hardest i ever reved it out,it only ran 56 mph tho...
    a couple weeks before we tried his 18p merc chopper and got 57 mph at 6120 rpm
    with my 12x20p merc cleaver we get around 59/60 mph at 5350 rpm.

    have you tried a more pitch at a lower top rpm ,it seems mine likes it around the 5500 rpm mark for topend ???

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